265122457 has 2 divisors, whose sum is σ = 265122458. Its totient is φ = 265122456.

The previous prime is 265122443. The next prime is 265122467. The reversal of 265122457 is 754221562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264355081 + 767376 = 16259^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 265122457 - 2⁷ = 265122329 is a prime.

It is not a weakly prime, because it can be changed into another prime (265122467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132561228 + 132561229.

It is an arithmetic number, because the mean of its divisors is an integer number (132561229).

Almost surely, 2^265122457 is an apocalyptic number.

It is an amenable number.

265122457 is a deficient number, since it is larger than the sum of its proper divisors (1).

265122457 is an equidigital number, since it uses as much as digits as its factorization.

265122457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 34.

The square root of 265122457 is about 16282.5813985375. The cubic root of 265122457 is about 642.4147520724.

The spelling of 265122457 in words is "two hundred sixty-five million, one hundred twenty-two thousand, four hundred fifty-seven".